Switch structure



June 18, 1935.

E. J. DYESS SWITCH STRUCTURE Filed May 8, 1954 5 Sheets-Sheet l JE L Ea r2 Jflyew,

June 18, 1935. E, J, DYESS 2,005,413

SWITCH STRUCTURE Filed May 8, 1954 5 SheetsSheet 2 Jiq Inventor Z'a rZ Jig/e55,

pww/zzh Attomey June 18, 1935.

E. J. DYESS SWITCH STRUCTURE Filed May 8, 1954 o w l \Q N 1 '0 N Q. Q I

N I l I Q n 5 Sheets-Sheet 5 I mlentm Attomey Patented June 18, 1935 UNITED STATES PATENT OFFICE 1 Claim.

This invention appertains to new and useful improvements in the general art of circuit makers and breakers, and more particularly to a novel disconnecting plug and receptacle for use in conjunction with commercial electricity service and watthour meter connections.

The principal object of the invention is to provide a quick-detachable plug and receptacle whereby the usual watthour meter and service line connections to a house can be broken conveniently from a point exteriorly of the house by the utility companys employees.

Another important object of the invention is to provide a switch of the character stated which will be substantially waterproof and substantially fool-proof in construction.

These and various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a side elevational view of the novel disconnecting device.

Figure 2 represents a vertical sectional view taken substantially on line 2-2 of Figure 1.

Figure 3 represents a top plan view of the device, with the cover removed.

Figure 4 represents a bottom plan view of the rotor.

Figure 5 represents a front elevational view of one of the brushes.

Figure 6 represents a side elevational view of the rotor.

Figure 7 represents an elevational view of one of the insulation blocks.

Figure 8 represents a diagrammatic view showing the electrical connections between the electrical elements and line.

Referring to the drawings wherein like numerals designate like parts, it can be seen in Figure 8, that the arrangement, generally referred to by numeral 5, discloses a diagram of the meter and service disconnecting plug and receptacle showing connections for a two-wire 110 volt watthour meter. The arrangement generally referred to by numeral 6, shows the same disconnecting device hooked up for a three-wire 110-220 volt watthour meter.

By referring to the arrangement generally referred to by numeral 5, it can be seen that the wire 1 extends from the line to the contact 9 of the receptacle, while the wire l extends from the contact ll of the receptacle to form part of the service circuit, including the neutral wire connected with the neutral conductor 2 of the line. Numeral I3 represents a conductor which connects to the contact H of the receptacle and also to the contact l of the receptacle. Wires |6|'| extend from the rotor contacts |8-|8 to the watthour meter, while numeral 20 represents a neutral wire from the contacts 2|-22 of the 5 rotor or plug of the switch to the meter. (Not shown).

In the three-wire type, generally referred to by numeral 6, numeral 23 represents the 220 volt line wire to the receptacle contact 9, while the wires 24-45 extend from the contacts ||-|5 of the receptacle, with the neutral conductor 26 to the service entrance. A 220 volt line connection 26 is made to the contact M of the receptacle. A 220 volt load wire 21 extends from the watthour meter (not shown) to the rotor of the switch at the contact |9, while a 220 volt line wire from the rotor contact l8 extends to the watthour meter. Numeral 29 represents a 220 volt load wire from the watthour meter to a contact 2| of the rotor, while the contact 22 of the rotor has the 220 volt line wire 30 extending therefrom to the watthour meter.

In describing the construction of this novel switch, it can be seen that the same consists in the construction of a substantially square casing 3|, open at its top and provided with a substantially ovate-shaped opening 32 in the bottom thereof. A flanged lid 33 is provided for the casing 3|, the flanges of the lid being secured to the casing 3| by screws 34.

At a pair of opposite sides of the casing 3| and at the inside thereof are secured the blocks 35-36, each having secured thereto spring contact brushes, denoted by reference numerals 9, H, H 35 and I5. Each of these blocks 35 and 36 is secured to the casing by a screw or bolt 31, while each of the contact brushes has a post extending therefrom and through the casing wall. Each of these posts is threaded and provided with binding nuts 38 whereby the wires leading to the contacts can be suitably secured in place. The casing 3| is provided with a bracket 39 whereby the casing and in fact, the entire switch, can be suitably supported for use.

In Figure 2, the rotor of the switch is generally referred to by numeral 40 and consists of the tube 4| having a transversely elongated di-electric body 42 thereon, the body being anchored to the tube 4| by anchor pins 43, certain of which project from the ovate-shaped plate 44 at the socket end 45 of the tube 4|, this plate 44 being engageable with the body 42 through the ovateshaped opening 32 in the bottom of the casing 3|, while a plate 46 at this socket end 45 of the tube 4| and spaced from the plate 44, prevents excessive inward movement 01' the rotor. The socket 45 is internally threaded to receive the usual conduit pipe which carries the meter and service wires into the building.

The lower contacts |922 are substantially L-shaped as shown in Figure 6, the upstanding portions a of which extend upwardly along the di-ele'ctric body 42 and have their upper ends bent across a portion of the upper end of the body 42 as to the contacts l82l, all of these portions of the contacts disposed over the upper end of the body 42 being provided with binding posts 48.

It can now be seen that the only operation required in disconnecting both the meter and the service line is for the employee to grasp the conduit pipe (not shown in the drawings) and rotate the same until the plateand body 42 of the rotor 40 is registering with the ovate-shaped opening 32 in the bottom of the casing 3|, at which point the rotor can be pulled downwardly and entirely disengaged from the brushes in the casing 3|.

While the foregoing specificationsets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:-

In combination with an electrical conduit, a casing having contact brushes therein, a di-electric head for the conduit, said casing being provided with an opening through which said head can be inserted, said bead being provided with contacts for engagement with the said brushes, said head being provided with a tubular conduit section extending therethrough, a base plate on the conduit section against one end of the head, a conduit receiving socket at the end of the conduit section adjacent said base plate, and a flange on the. said socket in spaced relation to the base plate, said flange being adapted to limit upward 2 movement of the said head into the casing.

EARL J. DYEss. 

